Glass cutting tool



FIG. 1 is a plan view of a glass cutting tool showing my new design;

FIG. 2 is a view taken from one side thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevation view thereof; and

FIG. 5 is a rear view thereof. 

The ornamental design for a glass cutting tool, substantially as shown. 